42 SMITHSONIAN MISCELLANEOUS COLLECTJOXS VOL. 6l 



as long as broad, and the remainder are much elongated with slightly 

 spinous distal ends. P., and P 4 are equal, slightly longer than P a but 

 similar to it, with twelve segments ; the first segment of P 3 may bear 

 a slight rounded dorsal carination. P B is about as long as P 2 , but 

 more slender and less spinous ; the following pinnules are shorter 

 than P 3 and are composed of eleven segments which have slightly 

 prominent distal ends. The distal pinnules are 9 mm. long. All the 

 pinnules are prismatic. 



The ventral aspect of the radial pentagon shows it to be that of a 

 typical member of the Calometridae. 



In color the calyx, division series, and the sides of the arms are 

 light brown ; a broad median band on the arms, most of the pin- 

 nules and the cirri are white. 



Locality. — Unknown. 



Genus CALOMETRA A. H. Clark 



CALOMETRA DISCOIDEA (P. H. Carpenter) 



Ante don discoidea 1888. P. H. Carpenter, "Challenger" Report, Comatu- 

 lae, p. 134 (i)- 



1. ''Challenger" Station A T o. 192. — Four specimens, two large 

 and two small ; the IB^ are extended laterally to an anterior process 

 from the radials so that there is a very prominent gap between the 

 axillaries ; the cirri are 38 mm. long ; the longest cirrus segments are 

 about one-third longer than broad or slightly longer. 



Family THALASSOMETRID^ A. H. Clark 



Genus PTILOMETRA A. H. Clark 



PTILOMETRA MACRONEMA (J. Miiller) 



Antedon wilsoni 1888. Bell, Ann. and Mag. Nat. Hist. (6), vol. 2, pp. 402, 

 403 (1). — 1890, P. H. Carpenter, Proc. Roy. Soc. Victoria (N. S.), 

 vol. 2, p. 135 (1). 



Antedon iucommoda 1888. Bell, Ann. and Mag. Nat. Hist. (6), vol. 2, p. 404 



(4). 

 Antedon macronema 1890. P. H. Carpenter, T. c., p. 135 (2, 3). 



i. Port Phillip, Victoria. — Seven young specimens. 



2. Port Phillip.— A beautiful large specimen with eighteen arms 

 resembling those in the Australian Museum collection from Kan- 

 garoo Island. 



3. Port Phillip. — One beautiful specimen. 



4. Port Phillip. — One young specimen. 



5. South Australia. — Two specimens. 



